This refractometer from Red Sea is the perfect tool for all those who have a reef tank. It helps in measuring the salinity of the seawater with ease and accuracy. The instrument is designed with precision and durability, ensuring that it lasts for a long time.

It is an essential tool for maintaining a healthy environment for the marine life in your reef tank. With its easy-to-read scale and user-friendly design, the Red Sea seawater refractometer is a must-have for all reef tank owners.